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CVE-2023-53729

Estado: AplazadaAlta (7.8)—

In the Linux kernel, the following vulnerability has been resolved:

soc: qcom: qmi_encdec: Restrict string length in decode

The QMI TLV value for strings in a lot of qmi element info structures account for null terminated strings with MAX_LEN + 1. If a string is actually MAX_LEN + 1 length, this will cause an out of bounds access when the NULL character is appended in decoding.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad local (AV:L/PR:L) que permite escritura fuera de límites (buffer overflow en decodificación QMI), escalando a ejecución de código arbitrario o DoS con privilegios elevados en kernel Linux.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationFilter Network Traffic

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-53729",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "9b8a11e82615274d4133aab3cf5aa1c59191f0a2",
              "lessThan": "6b58859e7c4ac357517a59f0801e8ce1b58a8ee2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b8a11e82615274d4133aab3cf5aa1c59191f0a2",
              "lessThan": "64c5e916fabe5ef7bef0210b8a59fa8941ee1b8e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b8a11e82615274d4133aab3cf5aa1c59191f0a2",
              "lessThan": "2ccab9f82772ead618689d17dbc6950d6bd1e741",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b8a11e82615274d4133aab3cf5aa1c59191f0a2",
              "lessThan": "b2f39b813d1eed4a522428d1e6acd7dfe9b81579",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b8a11e82615274d4133aab3cf5aa1c59191f0a2",
              "lessThan": "f6250ecb7fbb934b89539e7e2ba6c1d8555c0975",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b8a11e82615274d4133aab3cf5aa1c59191f0a2",
              "lessThan": "22ee7c9c7f381be178b4457bc54530002e08e938",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b8a11e82615274d4133aab3cf5aa1c59191f0a2",
              "lessThan": "8d207400fd6b79c92aeb2f33bb79f62dff904ea2",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/soc/qcom/qmi_encdec.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.16",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "4.19.295",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "status": "unaffected",
              "version": "5.4.257",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "status": "unaffected",
              "version": "5.10.195",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.132",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.54",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.5.4",
              "versionType": "semver",
              "lessThanOrEqual": "6.5.*"
            },
            {
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/soc/qcom/qmi_encdec.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-10-22T14:15:48.193",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/22ee7c9c7f381be178b4457bc54530002e08e938",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2ccab9f82772ead618689d17dbc6950d6bd1e741",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/64c5e916fabe5ef7bef0210b8a59fa8941ee1b8e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6b58859e7c4ac357517a59f0801e8ce1b58a8ee2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8d207400fd6b79c92aeb2f33bb79f62dff904ea2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b2f39b813d1eed4a522428d1e6acd7dfe9b81579",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f6250ecb7fbb934b89539e7e2ba6c1d8555c0975",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: qcom: qmi_encdec: Restrict string length in decode\n\nThe QMI TLV value for strings in a lot of qmi element info structures\naccount for null terminated strings with MAX_LEN + 1. If a string is\nactually MAX_LEN + 1 length, this will cause an out of bounds access\nwhen the NULL character is appended in decoding."
    }
  ],
  "lastModified": "2026-08-04T10:19:19.303",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}